Assuming you were serious in what you said, I don't think it's reasonable to assume that Erfworld mechanics apply to Stupidworld. Analogies made by Parson to compare the two aren't to be taken literally. His city didn't literally pop fratboys. He most likely was not a part of any side, and probably wasn't even considered a barbarian by Erfworld mechanics.

Being that the spell could select a warlord from anywhere, I think it's reasonable to figure that if the perfect warlord existed on Erf, it would be able to summon that warlord and force it to join the side. Wanda did say "anywhere" which includes Erf.

But if I remember correctly, one of Stanley's stipulations was that the warlord needed to want to be summoned. Probably smart, which is surprising, given the source.

Being that the spell could select a warlord from anywhere, I think it's reasonable to figure that if the perfect warlord existed on Erf, it would be able to summon that warlord and force it to join the side. Wanda did say "anywhere" which includes Erf.

I think it probably went without saying that the perfect warlord meant someone who would serve Gobwin Knob loyally, as opposed to a warlord who has all the skills of a perfect warlord but actually wants Jetstone to win. Even a warlord with high morale who is forced to obey Stanley doesn't necessarily really want Gobwin Knob to win in the end, so I expect that only those warlords who really would work for Gobwin Knob's ultimate victory were candidates for the summoning. If true that would mean that only people from another world who had no side and people who were dissatisfied with their current side and happy to turn would be summonable. I imagine that Erfworld has plenty of terrible rulers who have warlords that would be happy to serve a different side.

The only alternative to that limitation seems to be that Findamancy is a kind of super-Turnamancy that not only turns people better than Turnamancy but also zaps people bodily from one side to another, so you don't even need to capture a unit before you turn it. If Findamancy could do that, then I think we would have heard of it. As it is, all that we've seen Findamancy do is zap Parson to Erfworld and help Wanda discover where she misplaced some shoes. I can't bring myself to attribute vast additional powers to Findamancy until we see some explicit signs of it.

The only alternative to that limitation seems to be that Findamancy is a kind of super-Turnamancy that not only turns people better than Turnamancy but also zaps people bodily from one side to another, so you don't even need to capture a unit before you turn it. If Findamancy could do that, then I think we would have heard of it. As it is, all that we've seen Findamancy do is zap Parson to Erfworld and help Wanda discover where she misplaced some shoes. I can't bring myself to attribute vast additional powers to Findamancy until we see some explicit signs of it.

Findamancy only located an arkentool, and Summoned the perfect warlord from another universe and made him serve Gobwin Knob. More to the point a trilink isn't just findamancy, its a trilink. Hell, the summon perfect warlord spell (or something similar) has already been used to assassinate people outright!

Hell, the summon perfect warlord spell (or something similar) has already been used to assassinate people outright!

You're talking about Book 0, Episode 66:Wanda: "In fact, Bell of Easteros was croaked on the spot as an immediate effect of the summoning process."
Wanda gives us very little information about how that happened. If Bell died in the safety of the garrison of her own capital then how would anyone in Efbaum or Haffaton know what happened to her? Even if that was what happened it couldn't have been a planned effect. Given how critical rulers are to their sides, a spell that can reach out and croak rulers from a distance would never stop being used.

Instead, I imagine that Bell somehow knew about the summoning and how it might turn the war against her. I imagine she lead fliers into the Efbaum airspace in an attempt to croak or capture one of the casters or otherwise interfere with the spell. I'd guess she was there in person because she wouldn't trust her chief warlord to know about magic. Even though it wasn't his turn, I guess The Wizard decided he'd better go ahead with the summoning since it might be his last chance to do it. So then Bell would have invaded the tower, found the spell in progress, did something to try to stop the summoning, and instead got croaked somehow when the spell succeeded. That way everyone would know exactly what croaked Bell, and at the same time no one would try to use that as a strategy for killing rulers.

Wanda: "In fact, Bell of Easteros was croaked on the spot as an immediate effect of the summoning process."

Unless we hear otherwise, one should assume Bell was smushed into ruler slime by a small Kansas home while accosting a tribe of small, natural rhyme-o-mancers.

Or at least while accosting a group of chanting casters launching the "summon perfect warlord" spell, only they hadn't got it quite tuned yet and pulled not only the warlord but her entire house onto the spot... well, that or the Stanley equivalent (Overlord Doothis?) said at a critical time "I don't just want the perfect Warlord, I want his or her entire House to join me!".

Or at least while accosting a group of chanting casters launching the "summon perfect warlord" spell, only they hadn't got it quite tuned yet and pulled not only the warlord but her entire house onto the spot... well, that or the Stanley equivalent (Overlord Doothis?) said at a critical time "I don't just want the perfect Warlord, I want his or her entire House to join me!".